Hong Kong police fired water cannon and volleys of tear gas to break up protesters throwing petrol bombs and bricks near the Legislative Council building and central government offices on Sunday, the latest in weeks of sometimes violent unrest.

Yemen's Iran-aligned Houthi group on Saturday attacked two plants at the heart of Saudi Arabia's oil industry in a strike that could impact about 5 million barrels per day of crude production - close to half of the kingdom's output, or 5% of global oil supply.